diff --git a/isso/tests/test_vote.py b/isso/tests/test_vote.py
index 4266654..e90686e 100644
--- a/isso/tests/test_vote.py
+++ b/isso/tests/test_vote.py
@@ -75,18 +75,6 @@ class TestVote(unittest.TestCase):
         self.assertEqual(rv.status_code, 200)
         self.assertEqual(loads(rv.data), None)
 
-    def testTooManyLikes(self):
-
-        self.makeClient("127.0.0.1").post("/new?uri=test", data=json.dumps({"text": "..."}))
-        for num in range(256):
-            rv = self.makeClient("1.2.%i.0" % num).post('/id/1/like')
-            self.assertEqual(rv.status_code, 200)
-
-            if num >= 142:
-                self.assertEqual(loads(rv.data)["likes"], 142)
-            else:
-                self.assertEqual(loads(rv.data)["likes"], num + 1)
-
     def testDislike(self):
         self.makeClient("127.0.0.1").post("/new?uri=test", data=json.dumps({"text": "..."}))
         rv = self.makeClient("1.2.3.4").post('/id/1/dislike')
diff --git a/isso/utils/__init__.py b/isso/utils/__init__.py
index 9a50a79..dfc361c 100644
--- a/isso/utils/__init__.py
+++ b/isso/utils/__init__.py
@@ -33,7 +33,7 @@ def anonymize(remote_addr):
         return u'' + ipv6.exploded.rsplit(':', 5)[0] + ':' + ':'.join(['0000']*5)
 
 
-class Bloomfilter:
+class Bloomfilter(object):
     """A space-efficient probabilistic data structure. False-positive rate:
 
         * 1e-05 for  <80 elements
@@ -46,7 +46,7 @@ class Bloomfilter:
 
     >>> bf = Bloomfilter()
     >>> bf.add("127.0.0.1")
-    >>> not any(map(bf.__contains__, ("1.2.%i.4" for i in range(256))))
+    >>> not any(addr in bf for addr in ("1.2.%i.4" for i in range(256)))
     True
 
     >>> bf = Bloomfilter()